fix: nil config && unit test

Author: lvliangxiong

compiler/compiler.go

@@ -446,7 +446,7 @@ func (c *compiler) BinaryNode(node *ast.BinaryNode) {
 		c.emit(OpNot)
 
 	case "or", "||":
-		if c.config.DisableSC {
+		if c.config != nil && c.config.DisableSC {
 			c.compile(node.Left)
 			c.derefInNeeded(node.Left)
 			c.compile(node.Right)
@@ -463,7 +463,7 @@ func (c *compiler) BinaryNode(node *ast.BinaryNode) {
 		c.patchJump(end)
 
 	case "and", "&&":
-		if c.config.DisableSC {
+		if c.config != nil && c.config.DisableSC {
 			c.compile(node.Left)
 			c.derefInNeeded(node.Left)
 			c.compile(node.Right)

vm/program.go

@@ -372,6 +372,12 @@ func (program *Program) DisassembleWriter(w io.Writer) {
 		case OpBegin:
 			code("OpBegin")
 
+		case OpAnd:
+			code("OpAnd")
+
+		case OpOr:
+			code("OpOr")
+
 		case OpEnd:
 			code("OpEnd")